Fstoppers | Video Blog for Creative Professionals. Photoshop * Image Stacks (Photoshop Extended) Keith's Image Stacker. Visitors since1999 09 10 © 1998 - 2014 Keith Wiley All material on this website is copyrighted and may not be used without first obtaining permission from the author. Thank you. Keith's Image Stacker is an image processing program that is oriented primarily toward astrophotography. See my astrophotography webpage for information about my personal venture into that hobby. What Keith's Image Stacker provides, more than anything else, is a workspace in which to align many similar images (say from a quicktime movie of Jupiter taken through a telescope with a webcam) and then to produce a stack of the images, which consists of a single image that comprises either the sum, or the average, or some value in between of the individually stacked images.
Here's are some examples of what can be accomplished with this program: One frame (above, left), stack of 61 such frames with various processing (above, right) Keith's Image Stacker is "uncrippled" shareware. Publicity, Recognition Download v5.0.1 v5.0. Software for Astrophotography. There are several different types of software that you may be interested in for astrophotography: DSLR Camera Control With camera control software, you can use your computer to control all of the functions and settings of your camera, such as setting the ISO and opening the shutter. With the current generation of Canon EOS DSLR cameras (40D, 450D, 1D Mark III) software by the camera manufacturer will control all functions of the camera. This is accomplished through a single USB-2 Cable and includes control of the bulb setting for exposures longer than 30 seconds. This software also allows viewing of the Live-view real-time image on the computer and focusing.
With previous camera generations of Canon DSLRs (20D, 30D, 300D, 350D, 400D) and all Nikon DSLR cameras, the camera manufacturer's software could control all camera functions except one critical one for astrophotography: the ability to shoot exposures longer than 30 seconds with the bulb setting. Software-Assisted Focusing. DeepSkyStacker - Free. Focus Stacking ~ T+MGP 07. Depth of field is one of those fundamental skills that photographers learn. If you’re new to photography then the principle behind depth of field can be simplified to a choice of aperture. A small f number gives a smaller depth of field and a bigger f number gives a bigger depth of field. Of course in the real world there’s more to depth of field then simply the aperture used. You also need to take into account the focal length of the lens and the size of the cameras sensor.
But no matter what combination of focal length, aperture and sensor size used there will always be a limit to the depth of field that’s achievable. So if you want a truly massive depth of field then a single photo isn’t going to cut it. No, what you need is a series of photos of the same scene, all taken at different focal points. Focus stacking is a clever Photoshop trick which combines together the sharpest parts of a number of photos to create one image that has amazing depth of field.